Sup guys I picked up a complete b18c from a good friend of mine which got out of the game. It was built for boost but never installed zero miles on the block using darton dry sleeves. The only picture he has of the block is the one attached below.

My question is I notice there a little gap which I circled in yellow. I'm not sure about the other cylinders, but I think they might have them also, picture isn't to clear. The block has been already put together with the head. I'm just wondering if I might run into any problems with the gap not sealing correctly or any other problems? I'm shooting for 350hp-400hp. Let me know what you guys think.

Darton Dry Sleeves
Wesico pistons Flat top 81.5mm
Eagle Rods
Supertech valves/spring/retainers
Stock GSR camshaft
Arp headstuds
ACL bearing kit
Micro polished crank

 

mine are the exact same,

dry sleeves with little gaps in all 4 cylinders.

Mine has a blockguard as well and was done by benson (so im told)

but that being said, im at 500whp on 84mm on them without any issues.

But im afraid of going any higher because they seem so thin.

 

Love the numbers Glove. Mine doesn't have a block guard do you think I should be fine with my power goal? Also, Glove how long have you been running that setup years/miles.

 

Na, a block guard is only usefull if your revving super high, so it prevents sleeve walking from all the vibrations.

if you look at most of the sleeving manufactorers these days, none of them use block guards really,

they just put those braces near the middle of the sleeves just so they dont walk, block guards do the same thing, but they are a little shittier because they are at the top of the cylinder where all the heat is, so it has a higher chance of egging. I used water wetter/water in my radiator to try and solve the hot spot problem assosiated with block guards.


I havent screwed up this block yet, so I dont have any factual numbers to give you, but I would say keep it under 500whp and under 9k rpm,

thats what im doing and its working.

we were unfortunate to buy dry sleeves, and now must carry the scare that comes along with them.

But then again, you never really hear anything blowing up dry sleeved blocks either, but maybe thats because no one pushes them that far.

 

oh ya and, ive only had it for 1 season (6 months),

like 3000 miles?

 

Thanks Glove for the input. I know the head can rev passed 9k because of some of the head work done to it. But should I go ahead and let my tuner know to keep it at 9k or under that?

 

it probably wont make power that high anyway

 

Thanks for the info Glove . Glove I'll be running a Garrett t3/t4 .63 turbo. Do you think for my power goal I'd be maxing out that turbo? Anyone else have any input would be great.

 

.63 is just the A/R of the turbo nothing really to do with size. You would need to provide the compressor trim or inducer and exducer measurements to get a proper estimate on power.

generally a t3/t4 will be maxed around the 400whp mark and it will take higher boost pressures to get there.